What is it about?
Play behavior is well-documented in mammals and birds, but scientists have rarely studied whether small pet reptiles engage in play for fun or exercise. A published study investigated this by giving an adult pet leopard gecko (Eublepharis macularius) a rodent running wheel to see if the lizard would voluntarily use it. The study found that the gecko repeatedly walked on the wheel on her own, traveling surprisingly long distances. Her actions met all five established scientific criteria for locomotion play—the animal equivalent of running or moving purely for its own sake rather than for survival.
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Photo by Pippa Maria on Unsplash
Why is it important?
Fills a Major Scientific Void: While play behavior is well-documented in mammals, birds, and large monitor lizards, this study provides the first systematic scientific evaluation of play behavior in the leopard gecko—the third most popular pet reptile globally. Bridges the Gap Between the Lab and the Home: Unlike previous small-reptile studies conducted in extreme settings (such as geckos in weightless space orbit), this study tests play in a realistic, replicable home-laboratory setting using commercially available pet equipment. Rigorous, Criteria-Based Proof: Rather than relying on anecdotal social media claims, the paper systematically measures activity using video ethograms and cycle counters to prove that wheel-running meets all five formal scientific criteria for locomotion play. Challenges Assumptions About Reptile Inactivity: The findings overturn the common belief that small nocturnal lizards are passive terrarium animals, revealing single-day voluntary walking distances of up to 560 meters (over a third of a mile).
Perspectives
Reptiles are so often stereotyped as sluggish, passive creatures that simply sit in their terrariums. Writing this paper was my way of challenging that misconception with hard, empirical data. Seeing an older gecko voluntarily choose to walk hundreds of meters on a running wheel—meeting every scientific benchmark for locomotion play—was incredible. Beyond the numbers, my greatest hope for this article is that it inspires keepers to experiment with safe enrichment and gives small reptiles the credit they deserve as active, curious animals.
RICHARD DIGIROLAMO
Read the Original
This page is a summary of: Popular Pet Reptile, the Leopard Gecko (Eublepharis macularius), Spontaneously Uses Running Wheel– Is It Locomotion Play?, WikiJournal of Science, June 2024, Wikiversity Journal of Medicine,
DOI: 10.15347/wjs/2024.005.
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